Machine for repairing asphalt.



No. 638,524. vPatented naci io, |901. E. w. JEwETT. 4wummma Fon REPAmmG AsPmkLT,v

(Applicatqn led Feb. 19, 1901.)

5 Sheets-Shed. -l.'

(No- Model.)

No. 688,524. Patented nec. lo, |901.'

E. W. JEWETT.

MACHINE FR `REPAIRING: ASPHALT.

(Application led Feb, 19, 1901.) (No Model.) 5 Sheets-Sheet 2.

No. 688,524. Patented Dec. I0, |901.

E.. W. JEwETT..

MACHINE -FR REPAIRING ASPHALT. ('Appximion med Feb. 19, 1901.) (uo nodal.) 5 sheets-snm 3.

Snelweg' me uonms paens cb.. womuwo.. wAsumamn. uA c4 No. 688,524. Patented uw lb, 190|.

y A|:. w. JEwETT. MACHINE FOR REPALBING ASPHALT.

(Appucaein med Feb. 1'9, 1901.)v Y

' 5 Sheets-Shut 4.

m L- ag No. 688,524. Patented Dec. I0, |901. E. W. JEWETT.

MACHINE FOR REPAIRING ASPHALT.

(Application led Feb. 19, 1901.)

- QN Model- 5 sheets-sheet 5.

a bboznu UNITED vSTATES PATENT OFFICE. a

EDWARD JEWETT, OF LOWELL, MASSACHUSETTS, ASSIGNOR OF TWO- THIRDS TO SUMNER P. SMITH AND ROBERT E. MAGEE, OF LOWELL, MASSACHUSETTS. I

MACHINE FOR REP-AIRING ASPHALT.

SPECIFICATION forming part f Letters Patent No. 688,524, dated December 10, 1901.

Application filed February 19, 1901.V Serial No. 47,956. (No model.)

T0 @ZZ wwm it may wt: tion of said section and showing a knife in Be it known that I, EDWARD W. JEWETT, a end elevation. Fig. 7 is a detail view of the citizen of theUnited States,residingatLowell, slip-shaft employed in connection with this in the county of Middlesex and State of Massadevice. Fig. S is a section through the hood 55 chusetts, have invented new and useful Imof the cutter-head, and Fig. 9 is a bottom perprovements in Machines for Repairing Asspective view thereof. phalt, of which the following is a specification. Referring to the figures by numerals of ref- This invention relates to new and useful erence, 1 is an engine-carriage of a steammprovements in machines for repairing asroller ofordinary construction and is pro- 6o 1o phalt pavements; and its primary object is vided with a large roller 2, tanks 3, and an to provide apparatus of this character which engine 4. Journaled within the neck 5 of the may be operated in connection with asteamcarriage is a short shaft or pivot-pin 6, havroller of ordinary construction and whereby ing a yoke 7 secured to the lower end theremanual labor may be materially reduced and of and ,within which is mounted the small 65 I5 the cost of repairs diminished. rear roller 8 of the steam-roller. Asteering- A further Objectis to provide means of si'marm 9 is secured to the shaft 6, and this may ple and compact construction whereby asbe operated in any suitable manner, as by phalt may betorn up for a desired depth, the means of a hand-wheel 10, to turn the shaftl, operation of the mechanism elnployed thereand thus turn the rollers S and 13 bodily to `7` zo for being under the direct control of the percontrol the course of the machine. A horilson in charge of the steam-roller. zontally-extending truss is secured at one end Another object is to employ a device havupon the shaft 6, and its opposite end is piving means of peculiar construction for cutting oted upon the king-pin 11 of a yoke 12, withthe asphalt and which at the same time corin which is mounted a roller 13 similar to the 75 z 5 rugates the bottoms of the recesses formed, roller 8 before referred to.` Arms 19 extend said corrugations serving to anchor the new laterally from the yokes 7 and 12, and these asphalt placed within the recesses. are connected by rods 20, which are pivoted A further object is to provide means for thereto. Turnbuckles 21 are arranged within a preventing chips of asphalt from flying from the rods, so as to take up wear upon the joints `8o 3o the apparatus, means being employed for and permit the rollers 8 and 13 to swing to- 1 gathering the chips and discharging the same, gether. The truss preferably comprises two leaving the recess clean and ready to receive pair ofparallel angle-irons 14, connecting the 'new material. pivot-pins 6 and 11. Transversely-extend- With these and other objects in View the ining beams 15 are secured upon these irons, at 85 Vention Aconsists in the novel construction the center thereof, and hangers 16 depend and combination of thepartshereinafter more therefrom and support a platform 17 of suitfully described and claimed,andillustrated in able construction. Brace-rods, as 18, connect the accompanying drawings, showing the prethe platform with the irons 14 and serve to ferred form of my invention, and in whichstrengthen the trussand hold the platform 9o 4o Figure 1 is an elevation of the apparatus rigid.

connected to a steam-roller of ordinary con- A'small high-speed engine 22 of desired y struction. Fig. 2 is a plan view of the truss type is mounted upon the platform 17, at one of the attachment and the rollers to which it side thereof, and its driving-shaft 23 is conis secured. Fig. 3 is a transverse section nected by means of a universaljoint 24 to an 95 through the truss, showing the cutter-head extensible or slip shaft 25; This shaft is Y and its operating mechanism, the frame beformed, preferably, of two sections, one of ing broken away. Fig. 4 is an enlarged elewhich has an angular longitudinally-extendvation of a portion of the truss, showing the ing passage 26 therein adapted to receive the shifting mechanism of the cutter-head. Fig. remaining section, which is angular in cross- 10o 5o 5 is a detail view of one of the sections of the section. This last-mentioned section is concutter-head. Fig. 6 is an edge view of a pornected by means of a universal joint 27 to triangular in cross-section and having a concavo-convex cutting edge. The knives of the disks are arranged alternately, as shown in Fig. 3, so as to produce a wind7 or spiral cut Within the asphalt.

Secured to each box 29 is a slide 34, which is mounted between the guides 30 and is pro,- vided at its upper end with a rack 35. Cogs 36 mesh with the teeth of these racks, and these cogs are secured to a shaft 37, journaled above the platform 17.

Secured to the inner end of the shaft 37 is a beveled pinion 38, which meshes with a similar pinion 39, arranged at one end of a longitudinally-extendingshaft-IO. Thisshaft 40 is connected by a universal joint 4l to an inclined shaft 42, the opposite end of which is connected in a similar manner to a horizontal shaft 43, journaled above the neck 5 of the steam-roller. This shaft 43 is provided with a hand-wheel 44, whereby motion may be readily imparted to the sliding boxes.

A hood 45, preferably formed of sheet metal,

is secured to the boxes of the cutter-head and extends down over said head. The lower edges of the hood may be provided with strips of leather 46 orsimilar material, whereby the hood when lowered with the cutter-head will fit snugly upon the pavement. An outlet 47 is arranged along one edge of the hood and a series of nozzles 48 are located at the opposite side of the hood and are adapted to direct steam downward toward the outlet. These nozzles are connected to a steam supply-pipe 49.

It is thought that the operation of the device will be fully understood from the foregoing description, taken in connection with the accompanying drawings. It will be seen that the cutter-head and its hood can be raised and lowered as desired by turning the hand-wheel 44. Motion is imparted to the cutter-head from the engine 22, the sections of the shaft 25 moving from or toward each other as the cutter-head is adjusted. The alternately-arranged knives 33 tear up the asphalt as the cutter-head revolves, and the chips are promptly discharged from the hood by the steam escaping from the nozzles 4S, thereby leaving the recess clean and ready to receive the new asphalt. The knives, moreover, corrugate the bottoms of the recesses, said corrugations serving to anchor the material placed thereover.

In the foregoing description I have shown the preferred form of myinvention; but I do not limit myself thereto, as I am aware that modifications may be made therein without departing from the spirit orsacrificingany of the advantages thereof, and I therefore reserve the right to make all such modifications as fairly fall within the scope of my invention.

Having thus fnllydescribed my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In an attachment of the character described, the combination with a truss; of yokes pivcted at opposite ends thereof, rollers journaled Within the yokes, arms to the yokes, adjustable rods connecting and pivoted to the arms, a platform depending from the truss, a motor thereon, guides, a cutterhead within the guides and adapted to be revolved by said motor, and means for imparting vertical movement to the cutter-head.

2. In an attachment of the character described, the combination with a truss; of a platform suspended therefrom, guides thereabove, a cutter-head mounted Within the guides, a motor upon the platform, a shaft thereto, an extensible shaft, universal joints at the ends of said shaft and connecting the same to the shaft of the motor and the cutter-head,and means for reciprocating the cutter-head in its guides.

3. In an attachment of the character described, the combination with a truss; of a platform suspended therefrom, guides thereabove, boxes slidably mounted in the guides, a cutter-head journaled in the boxes, means for rotating the cutter-head, a rack to each box, gears meshing therewith, and means for revolving the gears and reciprocating the boxes.

4. In an attachment of the character described, the combination with a platform; of vertical guides thereabove, boxes slidably mounted in the guides, a rotary cutter-head jonrnaled in the boxes, a motor upon the platform, a shaft thereto, an extensible shaft, universal joints at the ends thereof connecting the extensible shaft to the shaft of the motor and to the cutter-head, racks extending from the boxes, gears meshing therewith, and means for revolving the gears and reciprocating the boxes.

5. In a device of the character described, the combination with a platform; of a motor thereon, guides thereabove, boxes slidably mounted in the guides, a rotary cutter-head journaled in the boxes, an extensible shaft for imparting motion from the motor to the cutter-head, a hood secured to the boxes and extending over the cutter-head, an outlet therefrom, nozzles within the hood,and means for directing steam thereinto.

In testimony whereof I alix my signature in presence of two witnesses.

EDWARD W. JEWETT.

Witnesses:

JOHN H. PARKER, JOHN A. ROBINSON.

IIO 

